CustomISO: buildiso failed in make_grub bootfs
I follow this instruction CustomISO
and create buildiso for testing :
buildiso -p base
and I get this error in section make_grub
==> Generating module dependencies
==> Creating zstd-compressed initcpio image: /boot/initramfs.img
==> Image generation successful
-> overlayfs umount: [/var/lib/artools/buildiso/base/artix/bootfs]
==> Done [/iso/boot]
==> Prepare [/iso/boot/grub]
-> Building core.img ...
-> Building bootx64.efi ...
-> Copying unicode.pf2 ...
-> Creating fat image of 4M ...
==> ERROR: A failure occurred in make_grub().
Aborting...
when I test boot only I get this error
buildiso -p base -bc
==> Start building [base]
==> Prepare [/iso/boot/grub]
==> ERROR: A failure occurred in make_grub().
Aborting...
can anyone help me? or do I have something wrong?
thanks.